@Melvin Lamont Evans Welcome to BiggerPocketsThe search function can help you find some relevant informationhere is an example https://www.biggerpockets.com/forums/88/topics/1049073-my-fi...

While I do take into consideration all the relevant expenses when I vet a property I still like to see at least $200/door cash flow so I can more easily build up my reserves and have some money to work with.  

Solid advice about using the relevant assumptions and strategies for the various classes. 

I don't recommend throwing the baby out with the bath water, and definitely make sure you understand the nature of the Mentor you choose.BP is a great resource to meet some amazing people. 

I am very interested in real estate investing and flipping (I have a decent amount of construction experience) I was wondering what some good resources are to look at when evaluating a property, especially in the Dayton / Cincinnati area.  

I cannot see a scenario here where he is better off re-levering to enter if he can't weather a shorter time frame; and if he can weather one, then he has the funds to put a downpayment outright on a  2nd.

As lenders, well issue a prequal/preapproval letter if we've analyzed your income, assets (bank and brokerage statements to establish that you have the liquidity to afford the down payment, closing costs, and reserves), review credit of the guarantors, review the relevant experience to ensure that we're not throwing our money away on newbies that are wandering around in the dark, and have put together a reasonable plan of attack for the project.

Are there any good resources online to be able to get an idea of average monthly/yearly expenses like utilities, etc. for a given zip or city?

I have been working with my contractor about 23 years now and when we get involved in a project I go to the site at least 4-5 times per week.

Does anyone have or know any resources for analyzing car washes?